The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Jun. 06, 1996
Applicant:
Inventors:
Johnathan C Frost, Henley, GB;
Stephen C Bennett, Reading, GB;
David S Lafyatis, Reading, GB;
Andrew P Walker, Reading, GB;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
422171 ; 422169 ; 422170 ; 422177 ; 422178 ; 60297 ; 60320 ; 55DI / ;
Abstract
Substantial improvements in the control of pollutants from internal combustion engines may be obtained by pre-drying a catalyst/hydrocarbon trap system and preferably incorporating a water trap in a catalyst/hydrocarbon trap system. A pre-drying system dries the water trap, HC trap and catalyst, eg upon engine switch-off.